Posted by – December 28, 2025

From the OpenHPC booth at Supercomputing SC25, this short interview frames OpenHPC as a Linux Foundation community project that bundles the “boring but critical” ingredients of a functional HPC cluster into a coherent, reproducible baseline: provisioning, a scheduler/resource manager starting point, I/O clients, developer toolchains, and common scientific libraries that many labs have relied on for decades. https://openhpc.community/

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A big theme is integration work: cluster software is not just Linux packages in isolation, it is drivers, kernel/user-space interfaces, RDMA-capable networking, and the rest of the stack that must be built and validated together. OpenHPC maintains continuously rebuilt repositories and uses automated build-and-test workflows so versions stay consistent, reducing the odds that an OS update breaks MPI, an interconnect fabric, or a compiler toolchain stack.

The conversation also touches the reality of heterogenous fleets and global preferences: OpenHPC targets both x86_64 (AMD/Intel) and Arm (aarch64), and it is commonly consumed on enterprise-compatible Linux choices such as Rocky Linux and AlmaLinux, alongside other supported distributions. Sponsorship and contributions help keep the infrastructure running, while the project stays open to practical fixes from universities, labs, and cloud operators when a particular hardware permutation behaves oddly out in the field.

If you are building your first cluster, the takeaway is that OpenHPC is meant to be a safe starting line, not a locked box: you can rebuild packages with your own tuning flags, interconnect choices, and site policy, while still inheriting a tested packaging framework. The community workflow—GitHub plus real-time help channels—also matters, because “it works on my nodes” is an endless combinatorics problem in HPC, and shared troubleshooting is part of the product of this work.

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